Long-term outcome of peroral endoscopic myotomy for esophageal achalasia in patients with previous Heller myotomy

摘要

Peroral endoscopic myotomy (POEM) is an emerging procedure in the treatment of esophageal achalasia, a primary motility disorder. However, the long-term outcome of POEM in patients, who have previously undergone a Heller myotomy, is unknown.